Another lightly viewed Sunday night saw CBS atop the viewership race with an average of only 6.41 million lead by 60 Minutes and the premiere of Big Brother 10 beating mostly rerun competition in their time slots.

Fox reruns, even weighed down by 'Til Death, managed to win the adults 18-49 demo crown with a 1.6 rating / 5 share.

Overnights: Local metered-market ratings service of Nielsen Station Index (NSI) in which household ratings and shares are provided to clients the morning following the day or evening of telecast.

Rating: Estimated percentage of the universe of TV households (or other specified group) tuned to a program in the average minute. Ratings are expressed as a percent.

Share (of Audience): The percent of households (or persons) using television who are tuned to a specific program, station or network in a specific area at a specific time. (See also, Rating, which represents tuning or viewing as a percent of the entire population being measured.)

LIVE+SD: The number that watched a program either while it was broadcast OR watched via DVR on the same day [through 3AM the next day] the program was broadcast.